1. In Group B, interproximal enamel reduction was made, but no polishing and remineralize treatment.

2. Most food impaction happened in the interproximal of molars. The impaction types were mainly hybrid and vertical impaction, and only 9.7% was horizontal impaction.

3. Objective The"black triangle"caused by loss of interproximal papilla usually lead to aesthetics deficiency.

4. Results The interproximal gingival papillae adjacent to all transplanted teeth were normal or slightly hyperplastic.

5. Results Among the 68 metal ceramic crowns, 70.59% were found to be fringe unqualification, 10.29% with contour unqualification, and 19.12% with ill interproximal contacts.

6. Objective: To investigate the multiple factors that affect the dental interproximal system.

7. This variation in diameter along the length of the filaments, when assembled into a toothbrush tuft improves both the interproximal cleaning and the scrubbing effectiveness of the toothbrush.